Home / 727.35-1,090.37-294.21

Finding the Fourth Proportional to 727.35, 1,090.37 and 294.21

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Solution

The fourth proportional to 727.35, 1,090.37 and 294.21 is: 441.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    727.35 : 1,090.37 = 294.21 : x
  2. Step 2: Convert to fraction form
    727.35/1,090.37 = 294.21/x
  3. Step 3: Cross multiply
    727.35x = 1,090.37 × 294.21
  4. Step 4: Simplify right side
    727.35x = 320,796.29
  5. Step 5: Solve for x
    x = 320,796.29/727.35
  6. Step 6: Final answer
    x = 441.05

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.